Automatic oiling device.



H. K. KING.

AUTOMATIC OILING DEVICE.

APPLICATION FILED NOV. 26, 1912,

Patented Dec. 29, 1914.

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A A TTOIMIEY.

UNITED srs ATENT OFFICE.

newes K. KING, or PHILADELPH A,rnnivsYLvANIA.

To all 'whomit may concern Be it known that 1,-HowA1n) K. KING, a

' citizen of the United States, residing at Philadelphia, in the countyof Philadelphia, State of Pennsylvania, have invented a new and usefulAutomatic Oiling Device, of

which the following is a specification.-

. 1.6 method and means for the automatic control a system already. inuse.

,"My invention relates to improvements in methods and means forautomatic oiling.

The ob ect is to provide an improved of the feed of lubricating oil suchas, for example, to the crank cases of engines; The invention isespecially applicable for use in connection with internal combustionengines of motor cars.

My invention comprises improvements in The system referred to, comprisesmeans for feeding oil by gravity to the crank cases; the reservoir beinglocated above the normal oil level in i the crankcase. The lubricationis'done by bearings reached by the splash.

Referring to the drawings which illustrate, merely by way of example,suitable means for efiecting my invention-Figure 1 A is an end elevationof an internal combustion engine. Fig. 2 is a horizontal section on line22 of Fig. 1. Fig. 3 is a vertical section on line 3-3 of Fig. 2...Fig.'4= is a fragmentary vertical section on enlarged .sc'aleon lineHot Fig. 2. Fig. 5 is a sectional detail of'a modification of'the deviceshown in Fig. 1 but on a reduced scale. Fig. 6 is a similar view of afurther modification. Fig. 7 is a similar view of a still furthermodification.

Similar numerals refer to similar parts throughout the several views.

Referring to Fig. 3, the oil reservoir 11. "is filled with oil byremoving the cap 12. When this cap is in place it bears on the valvestem 13 keeping the valve 14 off the seat 15. When the cap 12 is removedthe spring 16 causes the valve 14 to close on the seat 15. After thereservoir is filled with oil the cap 12 is screwed tight on the washer17 making it an air-tight joint. The.

5 oil will now flow through opening 18 to the Specification of Le'ttersPatent.

feeding of oil to the crank cases.

7 AUTOMATIC OILING DEVICE.

Patented'Dec. 2a, 1914.

Application filed November 26, 1912. Serial No. 733,591.

small chamber 19. Pipes 20 and 21 connect this chamber 19 with the crankcases 22 and 23.

By the system above referred to, the pipes 20 and 21 simply project intothescrank cases at the desired elevation so that the oil will flowthrough these pipes into the crank cases until the level of the oil inthe crank cases is above the discharge end of pipes 20 and 21. Thisserves .to seal the ends of the pipes against the admission ofairto thereservoir 11, thus preventing the further flow of oil from the reservoiruntil the level of the oil in the crankcas s is reduced to permit moreair to flow through pipes 20 and 21 to reservoir 11, and thus allowaddisame is consumed by the running of-the engine. matically as requiredso-long as there. is oil in the reservoir. In practice however,difficulty has been encountered in preventing this system, under certaincircumstances In thisway the oil is fed autoti'onal oil to flow fromreservoir 11, as the from feeding too much oil. This is dueto the swashor wave motion of the oil in the crank cases, uncovering the ends of thefeed pipes unduly. thus causing an excessive The amount of wave motionof the oil varies with the speed of the car and with variation ofsurface of the road over which the car travels. Rough and hilly roadswill cause great excess-of oil. Excess of oil in the crank cases meansexcess of oil in the cylinders, and, as is well known. this results insmoke from the exhaust and carbon deposit in the valve chambers and onthe valves andcylinder heads and spark plugs. This carbon is verydetrimental to the working of the engine. Vi hile too much oil isundesirable, an insufiicient supply is equally disadvantageous. \Vithinsufficient lnbrication the fine fittingof the pistons in the cylinderswill be quickly destroyed. It is therefore highly desirable thataconstant body 30 is provided with a chamber 37 into which. the pipe 21discharges through open ing This chamber 37 is provided near the bottomthereof, with a series of discharge apertures 39. At the upper end ofchamber 37 is the neck or restricted channel 35 which establishescommunication between chamber 37 and chamber 36. Chamber 36 is providedat its upper extension with a series of air holes-38 and betweenchambers 36 and 37 is a substantial :partition or bafile 34. This body30 is so placed in the crank case that the normal oil level willcorrespond substantially with the bottom of chamber 36,

that is, all of chamber 37 and neck 35 will lie beneath said normal oillevel.

With such an arrangement, oil flowing by gravity from reservoir 11,through pipe 21 into chamber 37, is delivered through the apertures 39to the crank case. The oil passing from the reservoir, is replaced byair, passing through holes 38 in chamber 36, and through neck 35 intochamber 37, and thence through pipe 21 to reservoir 11. Thus the flowof'oil from reservoir 11 to chamber 37 and the return of air from pipe21 to reservoir 1 1, to take the place of the outflowing oil, iscontinued until the level of the oil in the crank case is above thelevel of opening 33, whereupon the opening 33 is entirely sealed by oilagainst the admission of further air to reservoir 11, and

the tendency to vacuum, will prevent the further discharge of oilfromreservoir 11. The wave motion of the oil in the crank cases, due to thevibration of the automobile,

rapidly changes the level of the oil on the outside of body 30. The oillevel in chamber 37 is practically unaffected however by the motionoutside the chamber, because of the limited discharge of oil throughpassages 39, and of the attenuated neck 35. There is practically no wavemotion of oil in chamber 37. For best results chamber 37 should have aconsiderable volume relative to the size or number of the outlets 39.The combined area of the outlets 39 must be suflicient to feed therequiredamount of oil to the engine.

The local wave motion inside is reduced to a minimum by the baffle plate34. For best results this baffle plate should be of sufficientthickness, so that chamber 37 in connection with a substantial neck 35will have the formation similar to that of a bottle.

In Fig. 5 body 30 corresponds even more closely to the shape of abottle. Then the oil is at its working level it extends some distance upthe neck. This body 30 when filled with oil as described, will standconsiderable shaking without materially agitating the upper surface. Theconditions are similar to a bottle filled with liquid to a point justabove the neck. The bottle may be moved up and down quite rapidly andthe of the oil in neck 35 controls the feeding of oil from reservoir 11.As the oil is consumed by the engine, more oil will be fed from thereservoir to take its place. Thus a practically constant supply of oilis provided. v v

In the arrangements shown in Figs. 4, 5 and 6, pipe 21 serves a doublepurpose, that of carrying oil downwardly from the reservoir 11, to thechamber 37, and air upwardly to the same reservoir. In Fig. 6, pipe 21connects theneck 35 entirely above chamber 37. This results in puttingthe oil chamber 37 deeper below the oil level in the crank case, thusmaking a greater depth of oil in the neck 35. In the constructions shownin both Figs. 5 and 6, the air communication is direct from neck 35 tothe atmosphere. 4

In Fig. 7 the oil is fed downward fromthe bottom of the reservoir 11through pipe 4L0 andpassage 41 to chamber 37. The air enters passage 42going downwardly in the neck- 35, and, when the level of oil permits,enters passage 43, going up passage i and delivering entirely above theoil level. It will be understood that in this arrangement, the highestpart of passage 43, where it connects with the neck 35, will control theoil level in the crank case.

. It will be obvious that my improvement may be applied to any machinehaving a crank case and having the splash system of lubrication.

lVhat I claim is 1. In a splash oiling system for crank cases, achambered body within the crank case having an oil discharge and an airinlet, a normally air-tight oil reservoir above the chambered body and aconductor con-' necting the oil reservoir with the chambered body. a v2. In a splash oiling system for crank cases, the combination of achambered body located within the crank case having oil discharge ventsand an air inlet, a normally air-tight oil reservoir at an elevationabove the chambered body, a conductor leading from the oil reservoir tothe chambered body and connecting with the latter at a pointintermediate the air inlet and oil discharge.

3. In a splash oiling system for crank cases, the combination of achambered body located within the crank case having an air passageextending from the top of the chamher and connected with an air supplyand having limited oil discharge vents near the bottom of said chamber.a normally airtight reservoir above the level of the charm bered bodyand a conductor leading from the reservoir to said chambered body at apoint intermediate the air inlet and oil discharge. 4. In a splashoiling system for crank cases, the combination of a chambered bodylocated 'Within the crank case having an air gassage extending from thetop of the chamer and connected with an air supply and having limitedoil discharge vents nearthe bottom of said chamber, a normally airtightreservoir above the level of the chambered body, a conductor leadingfrom the reservoir to said chambered body and connecting with the latterat a point intermediate the air inlet and oil discharge, the saidchlambereg bodyi adapted to b; normally sir er 'e in oi to the evel othe point of (Mn of the conductor therewith.

5. In a splash oiling system for crank cases, the combination'of achambered body located Within the crank case, said body having an oilcontaining chamber adapted normally to be submerged beneath the oil inthe crank case, said chamber having an Y attenuated passage at its upperside connecting with an air supply, and provided with oil discharge"ents near the bottom thereof, an air-tight oil reservoir at anelevation above said oil chamber, and a conductor leading from thereservoir and connecting with said chamber between the air inlet and theoil discharge.

6.111 an automatic oiling device a chambered body having an oildischarge to the crank case and an air inlet the chambered body beinglocated in close proximity to the vertical plane of the axis of tilt ofthe crank case, a normally air-tight oil reservoir above the chamberedbody and a conductor connecting the oil reservoir with the chamberedbody.

HOWARD K. KING.

Witnesses:

FLORENCE P. TAY OR, DUDLEY XV. TArLon.

